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Message:

centre in any shape - Java2D + Center of Attention

Posted by vijay on December 30, 2001 at 2:33 AM

Thanks for all the help.

Here is the solution. IF there is an error please do correct

public static Point2D[] getCentroidOfShape(Shape[] theShapes)
    {
        Point2D[] centroids = new Point2D.Float[theShapes.length];
        for (int i = 0; i < theShapes.length; i++)
        {
            PathIterator pi = theShapes[i].getPathIterator(null);
            FlatteningPathIterator fpt = new FlatteningPathIterator(pi,.1,20);
            int j = 0; // number of points
            double dSumX = 0;
            double dSumY = 0;
            while(!fpt.isDone())
            {
                double[] coordinates = new double[2];
                int type = fpt.currentSegment(coordinates);
                if ( type == PathIterator.SEG_LINETO || type == PathIterator.SEG_MOVETO )
                {
                    j++;
                    dSumX = dSumX + coordinates[0];
                    dSumY = dSumY + coordinates[1];
                }
                fpt.next();
            }
            centroids[i] = new Point2D.Float((float) (dSumX/j),(float)(dSumY/j));
        }
        return centroids;
    }